Hiya Dreamin, sorry to say but you accidentally posted in the wrong section.
You'll be sure to find an answer in physics - feel free to ask your question there. This question is closed as it is in the wrong section.
You can find other subjects by clicking "find more subjects" above. If you have any questions about this feel free to ask :)
And guys - just because a question is in the wrong section doesn't mean you should provide an answer to it.